To what extent do astronomers have the ability to see into the history of the universe?
Q: Why is it not possible to find out what's going on in our nearest star within the span of 24 hours?
A: Einstein's special relativity explains how speed affects mass, time, and space. As per special…
Q: What is dark matter ?
A: A type of matter hypothesized to account for a large type of mass in the universe it's the dark…
Q: why in the pythagorean theorem formula is it "a^2 - b^2" instead of "a^2 + b^2"
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Q: Scientific models are often built in stages or layers, starting with a single idea. Which idea…
A: The Big Bang is a cosmological model of the observable universe that describes how the cosmos…
Q: given: a (distance to center of galaxy in AU) = 1,717,914,439 AU P (suns orbital period in years)…
A: Given: a (distance to center of galaxy in AU) = 1,717,914,439 AU P (suns orbital period in years) =…
Q: What is the evidence that the universe was very uniform during its first 400,000 years?
A: The universe was formed from a big explosion called Big Bang. In the beginning, everything was…
Q: Calculate the age of the universe when its temperature was 10¹¹ K.
A: The universe was once part of a singularity of very high density and temperature. All the forces and…
Q: How much of the universe appears to be the normal ordinary matter? Group of answer choices 50% 95%…
A: CONCEPT: Among the whole universe, only a small part is visible and the remaining part is…
Q: About what percentage of the universe is believed to be composed of normal matter? O 5% O > 22% O…
A: 68% of the matter is dark energy. 27% of the matter is dark matter. Rest less or equal to 5% is…
Q: Hubble's Law Constant provides the following information about the observable universe: galaxies…
A: Hubble's law constant, often denoted as H₀ provides an estimate of the current rate of expansion of…
Q: Put these in order from smallest to largest Universe Galaxy Solar system Distance between earth and…
A: Here we arrange these things on the bases of their size in increasing order.
Q: What is the evidence that the universe was very uniform during its first 400,000 years?
A: The evidence of the uniform nature is explained by particle physics. Before the formation of the…
Q: Why the gravitational force is so important on the cosmic scale?
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Q: Helium is common element in the Universe. True/False
A: Hey, since there are multiple questions posted, we will answer first question. If you want any…
Q: There exists an element visible in the spectrum of galaxies that shows the following spectra when…
A: Introduction: The Doppler effect refers to the apparent shift in the wavelength of a wave when there…
Q: Calculate the age of the universe when the temperature was 10¹ K.
A: The age of the universe when the temperature was 1013 K. Given, TemperatureT=1013 K
Q: Compare the values of the number of grains of sand in all earth’s beaches with the number of stars…
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- After the Big Bang the Universe expanded and cooled. What was the temperature of the Universe when it became transparent 380,000 years after the Big Bang? Group of answer choices 100 billion K 1 billion K 10 million K 3,000 Kwhat is the scientific concept used in the test? how old is the rock in years? scientist agree that the age of the universe is about 4 billion years old, does the age of the rock referred in the problem support that? why?Does it make sense to ask, “If the universe is expanding, what is it expanding into?”
- In the reading, you were told that there were roughly 10,000 galaxies in the image of the Hubble Ultra Deep Field alone. The image is roughly 10 square arcminutes and there are roughly 1.5*10^8 square arcminutes composing the entire sky. With that in mind and assuming that the Hubble Ultra Deep Field represents an average part of the sky, roughly how many galaxies may exist in the observable universe? (Please include commas for every factor of 1,000; for example 2,343,567,890)Place all of the following in order from earliest to the most recent: Dark energy begins acceleration of the expansion of the universe You study for your final in astronomy Last scattering of the Cosmic Microwave Background Radiation First stars and galaxies form Big Bang Universe becomes transparent (no longer opaque) aka photon decoupling time Inflationary Epoch Formation of first complex elements (hydrogen isotopes, helium & lithium)The presence of dark energy affects to the way the Universe is expanding. Select one: True False